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The MikroElektronika MIKROE-3746 (Secure UDFN Click) is socket based click board, specifically designed for the Microchip CryptoAuthentication devices in an 8-pin UDFN package. It supports the I2C, SPI, and the SWI interface based ICs from the CryptoAuthentication family.
Its a parasitic power supply
Provides external voltage supply for OTP
It has good flexibility.